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+/* Copyright (c) 2012 - 2016, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of The Linux Foundation nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+* Portions formerly licensed under Apache License, Version 2.0, are re licensed
+* under section 4 of Apache License, Version 2.0.
+
+* Copyright (C) 2010 The Android Open Source Project
+
+* Not a Contribution.
+
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+
+* http://www.apache.org/licenses/LICENSE-2.0
+
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/*! @file blit_engine.h
+ @brief Interface file for Blit based compositior.
+
+ @details The client can use this interface to get the blit composition done
+
+*/
+
+#include <hardware/hwcomposer.h>
+#include <core/layer_stack.h>
+#include <copybit.h>
+#include "blit_engine.h"
+
+#ifndef __BLIT_ENGINE_C2D_H__
+#define __BLIT_ENGINE_C2D_H__
+
+namespace sdm {
+
+// C2D Blit implemented by the client
+// This class implements the BlitEngine Interface which is used to get the
+// Blit composition using C2D
+class BlitEngineC2d : public BlitEngine {
+ public:
+ BlitEngineC2d();
+ virtual ~BlitEngineC2d();
+
+ virtual int Init();
+ virtual void DeInit();
+ virtual int Prepare(LayerStack *layer_stack);
+ virtual int PreCommit(hwc_display_contents_1_t *content_list, LayerStack *layer_stack);
+ virtual int Commit(hwc_display_contents_1_t *content_list, LayerStack *layer_stack);
+ virtual void PostCommit(LayerStack *layer_stack);
+ virtual bool BlitActive();
+ virtual void SetFrameDumpConfig(uint32_t count);
+
+
+ private:
+ static const uint32_t kNumBlitTargetBuffers = 3;
+
+ struct Range {
+ int current;
+ int end;
+ };
+
+ struct RegionIterator : public copybit_region_t {
+ explicit RegionIterator(LayerRectArray rect);
+ private:
+ static int iterate(copybit_region_t const *self, copybit_rect_t *rect);
+ LayerRectArray rect_array;
+ mutable Range r;
+ };
+
+ int AllocateBlitTargetBuffers(uint32_t width, uint32_t height, uint32_t format, uint32_t usage);
+ void FreeBlitTargetBuffers();
+ int ClearTargetBuffer(private_handle_t* hnd, const LayerRect& rect);
+ int DrawRectUsingCopybit(hwc_layer_1_t *hwc_layer, Layer *layer, LayerRect blit_rect,
+ LayerRect blit_dest_Rect);
+ void SetReleaseFence(int fence_fd);
+ void DumpBlitTargetBuffer(int fd);
+
+ copybit_device_t *blit_engine_c2d_ = NULL;
+ private_handle_t *blit_target_buffer_[kNumBlitTargetBuffers];
+ uint32_t current_blit_target_index_ = 0;
+ int release_fence_fd_[kNumBlitTargetBuffers];
+ uint32_t num_blit_target_ = 0;
+ int blit_target_start_index_ = 0;
+ bool blit_active_ = false;
+ uint32_t dump_frame_count_ = 0;
+ uint32_t dump_frame_index_ = 0;
+};
+
+} // namespace sdm
+
+#endif // __BLIT_ENGINE_C2D_H__